Microtubule-based nucleation results in a large sensitivity to cell geometry of the plant cortical array

doi:10.1371/journal.pcbi.1013282

Microtubule-based nucleation results in a large sensitivity to cell geometry of the plant cortical array

Fig 8

Nucleation mode has a strong impact on sensitivity to geometry.

Orientation of n = 2000 arrays at s (8 h, 20 min) on boxes (A–C) and cylinders (D–F), all with the same total surface area. Individual points are coloured by R₂ value. Note that this measure of alignment has an orientation and geometry dependent maximum value . The basis for the surface area is a cylinder of L = 40 μm and diameter of 12 μm from Fig 4A. For cylinders (D–F), L is varied as indicated, and diameter adjusted to maintain the same total surface area. This has approximately the same surface area as a L × W × W = 17 × 17 × 17 μm³ box. For boxes (A–C), length L is varied as indicated and width W is adjusted accordingly to maintain the same total surface area. Cartoons are indicative of aspect ratios. Cartoons with green bands (ISO and GDD square box data) illustrate the array orientations belonging to the different positions in the plot. Histograms at the side of each plot show the relative distribution of transverse (top) to longitudinal (bottom) orientations. The highest peak in each histogram has a fixed height, i.e., the histograms are scaled differentially. In these simulations, r_c = 0.00175 s⁻¹. For intermediate aspect ratios, see S5 Fig.

doi: https://doi.org/10.1371/journal.pcbi.1013282.g008